July 2024 Operating Report

Monthly Operating Report
July 2024

2
July 2024 overview
»The Customer business recorded:
•Mass market electricity and gas sales of 472GWh (July 2023:
467GWh)
•Mass market netback of $130.63/MWh (July 2023: $126.40/MWh)
»The Wholesale business recorded:
•Contracted Wholesale electricity sales, including that sold to
the Customer business, totalled 834GWh (July 2023: 821GWh)
•Electricity and steam net revenue of $174.20/MWh (July 2023:
$152.72/MWh)
•Electricity generated (or acquired) of 891GWh (July 2023:
789GWh)
•The unit generation cost, which includes acquired generation
was $59.05/MWh (July 2023: $42.28/MWh)
•Own generation cost in the month of $46.07/MWh (June
2023: $41.97/MWh)
»Te Huka 3 project progress vs. target for July 2024 was 92% vs. 93%
1
.
»Otahuhu futures settlement wholesale price for the 4
th
quarter
of 2024 (ASX):
•As at 9 August 2024: $293/MWh
•As at 31 July 2024: $293/MWh
•As at 29 June 2024: $173.1/MWh
»As at 11
th
August 2024, South Island controlled storage was 44%
of mean and North Island controlled storage was 52% of mean.​
»As at 11
th
August 2024, total Clutha scheme storage was
29% of mean.​
»Inflows into Contact’s Clutha catchment for July 2024
were 74% of mean. (June 2024: 54%, May 2024: 44%, April
2024: 197%)
»Contact’s contracted gas volume (including contracted swaps)
for the next 12 months is 10.3PJ
2
.
2
This incorporates the lower bound of the range notified by our suppliers as disclosed to the market on 7 April 2024. Of
note, if drilling results and well performance are lower than expected we could see a further reduction to this forecast.
Note: Mean hydro references on this page are based on the mean of all reported periods
(i.e. both pre- and post-market data), sourced from NZX.
.
1
The progress target for Te Huka 3 follows an S-Curve model in line with standard project management practice(for
large scale infrastructure projects). This will result in more gradual increments in the reporting of target andactual
progress as the projects near completion. Figures rounded to the nearest percentage.

New Zealand controlled hydro storage
against mean / 12 months
ASX futures settlement
Hydro storage and forward prices
3
Benmore
Otahuhu
Contact Energy / Monthly Operating Report
0
500
1000
1500
2000
2500
3000
3500
4000
4500
AugSepOctNovDecJanFebMarAprMayJunJul
GWh
South Island ActualNorth Island Actual
South Island post-market meanNational post-market mean
0
200
400
CY24CY25CY26CY27
$/MWh
30/06/202328/06/202431/07/2024
0
200
400
CY24CY25CY26CY27
$/MWh
30/06/202328/06/202431/07/2024

Wholesale electricity pricing
Otahuhu
Contact Energy / Monthly Operating Report
4
Benmore
Distribution of wholesale market price by trading periods
Wholesale market
0%
20%
40%
60%
80%
100%
<$35$36-$60$61-$85$86-$110$111-$135$136-$160>$160
% of trading
periods
Jul-24Jul-23Jun-24
0%
20%
40%
60%
80%
100%
<$35$36-$60$61-$85$86-$110$111-$135$136-$160>$160
% of trading
periods
Jul-24Jul-23Jun-24
0
50
100
150
200
250
300
350
400
JulAugSeptOctNovDecJanFebMarAprMayJun
$/MWh
FY24 BENFY25 BENFY24 OTAFY25 OTA

5
Total national demand
Regional demand change (%) on July 2023
»New Zealand electricity demand was up 2.2% on July 2023 (up 1.2% on
July 2022).
Source: Contact and Electricity Authority grid demand (reconciled) http://www.emi.ea.govt.nz
FY23, 24 and 25 respectively
Regional demand is excluding NZAS
The nationwide
average temperature
for July 2024 was
9.0ºC, 0.1ºC lower than
July 2023: 9.1ºC
Electricity demand
Contact Energy / Monthly Operating Report
-
500
1,000
1,500
2,000
2,500
3,000
3,500
4,000
JulAugSepOctNovDecJanFebMarAprMayJun
GWh
NZASSouth Island (exc. NZAS)North Island
(6%)
14%
2%
0%
4%
3%
2%
2%
(0%)
3%
1%
10%
6%
(0%)
5%
(1%)
3%
12%
19%

Wholesale
Contact Energy / Monthly Operating Report
6
Retail
Generation mix, gross sales position and unit generation cost (FY24 and 25
respectively)
Retail sales volumes and netback (FY24 and 25 respectively)
Business performance
-
10
20
30
40
50
60
70
80
90
100
-
100
200
300
400
500
600
700
800
900
1,000
Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun
$/MWh
GWh
GeothermalHydroThermal
Acquired generationContracted electricity salesUnit generation cost (RHS)
-
20
40
60
80
100
120
140
160
0
100
200
300
400
500
600
Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun
$/MWh
GWh
Mass market electricity salesRetail gas salesNetback

Contact Energy / Monthly Operating Report
7
1
This includes market making activity and is reported outside of EBITDAF.
7
Operational data
Measure
The month ended The month ended The month ended
July 24July 23June 24
RetailMass market electricity salesGWh397 385 354
Retail gas salesGWh75 82 67
Mass market electricity and gas salesGWh472 467 421
Average electricity sales price$/MWh275.53 266.65 275.20
Electricity direct pass thru costs$/MWh(116.14)(111.73)(125.23)
Cost to serve$/MWh(14.73)(14.16)(15.36)
Customer netback$/MWh130.63 126.40 123.21
Energy cost$/MWh(183.91)(161.55)(173.86)
Actual electricity line losses%7%7%6%
Retail gas salesPJ0.3 0.3 0.2
Electricity ICPs#441,500 431,000 439,000
Gas ICPs#73,000 70,500 72,500
Telco connections#110,000 87,000 109,000
WholesaleElectricity sales to Customer businessGWh427 414 378
Electricity sales to Commercial and IndustrialGWh126 113 124
Electricity CFD salesGWh281 294 297
Contracted electricity salesGWh834 821 799
Steam salesGWh23 21 17
Total electricity and steam net revenue$/MWh174.20 152.72 167.01
C&I netback (at the ICP)$/MWh179.81 155.32 177.80
C&I line losses%4%4%4%
Thermal generationGWh208 198 168
Geothermal generationGWh390 293 363
Hydro generationGWh218 296 237
Spot electricity salesGWh816 786 768
Electricity sales – DirectGWh- - -
Acquired generationGWh75 3 74
Electricity generated (or acquired)GWh891 789 842
Unit generation cost (including acquired generation)$/MWh(59.05)(42.28)(54.53)
Spot electricity purchasesGWh(553)(527)(502)
CFD sale settlementsGWh(281)(294)(297)
Spot exposed purchases / CFD settlementGWh(834)(821)(799)
Spot revenue and settlement on acquired generation (GWAP)$/MWh355.88 113.48 256.90
Spot purchases and settlement on CFDs sold (LWAP)$/MWh(376.61)(120.24)(267.06)
LWAP/GWAP%106%106%104%
Gas used in internal generationPJ1.6 1.5 1.3
Gas storage net movement (extraction) / injectionPJ(0.7)(0.2)(0.5)
Progress tracking actual (target) for Te Huka 3%92%(93%)N/A89% (91%)
ContactTotal customer connections#629,000 594,000 625,000
Realised gains / (losses) on market derivatives not in a hedge relationship
1
$m(3.35)(3.13)0.70

8
Material themeMeasureUnit
Q4 FY24Q4 FY23
Climate Change
Greenhouse Gas (GHG) Emissions from generation assets
1
kt CO
2
-e
250
83
GHG intensity of generation
2
kt CO
2
-e /
GWh
0.115
0.043
Water
Freshwater take
3
Million cubic
metres
0.600.42
Non-consumptive water usage
4
Million cubic
metres
3,4334,723
Geothermal fluid discharge to awa (rivers)
Million cubic
metres
5.154.27
Biodiversity
Native rākau (trees) planted by Contact
5
#
6,017
6,707
Pests caught
6
#
903
761
Community
Community initiatives and organisations supported#
3329
Inclusion and
Diversity
Board
% Women/ %
Men
43% / 57%57% / 43%
Inclusion and
Diversity
Key Management Personnel
% Women/ %
Men
20% / 80%20% / 80%
Inclusion and
Diversity
Employee Gender balance
7
% Women/ %
Men
47% /52%46% / 53%
Note: This information is updated quarterly (September, January, April, June)
1
Scope 1 – Stationary combustion. In FY23 stationary combustion was 99.94% of Contact’s total Scope 1 emissions. There was more thermal generation in Q4 compared to previous quarters. Tauhara generation began in Q4.
2
Carbon equivalent from stationary combustion / electricity generated and sold via the spot wholesale market
3
Freshwater taken to support operations at geothermal and thermal. There was more thermal generation in Q4 compared to previous quarters, therefore more cooling water required.
4
Water that flows through our Roxburgh power station and cooling water for our geothermal power stations
5
Does not include DrylandCarbon/Forest Partners activities
6
Predominantly rats, possums and hedgehogs
7
Includes all permanent, fixed term and casual employees. 1.5% and 1.2% unspecified in Q4 FY24 and Q4 FY23 respectively. Q4 data now includes Simply Energy employees.
Contact Energy / Monthly Operating Report
Environment, Social and Governance (ESG)

9
investor.centre@contactenergy.co.nz
contact.co.nz/aboutus/investor-centre
Investors
Shelley Hollingsworth – Investor Relations &
Strategy Manager
contact.co.nz
@ContactEnergy
Linkedin.com/company/contact-energy-ltd
Facebook.com/ContactEnergy
Youtube.com/ContactEnergy
To find out more about Contact Energy
+64 27 227 2429
Contact Energy / Monthly Operating Report
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